He was going through it to say the least, he dismissed all accusations as he lost weight and was becoming submerged wholly in his own depressing thoughts.

It worsened when Suguru came down with an illness, coughing and sneezing. He felt horrible, but this gave him all the more reason to seclude himself and drown himself in his own suppositions.

He laid in his room, just staring absently at the ceiling, a wet rag on his head, occasionally sniffling. This seclusion of himself worried you.